The world's most iconic buildings were built in the heyday of the American century, and as New York became the capital for these innovative new skyscrapers, experts used cutting-edge tech to push engineering to new heights.
It began as an audacious idea: to establish a permanent human presence in the most hostile environment known to man -- space. It's a dream that would bring together two former Cold War enemies and lead to the most expensive structure ever built. Discover the inside story of the International Space Station. See how NASA engineers triumphed over decades of seemingly insurmountable obstacles to develop Skylab, Space Station Freedom, and finally the International Space Station.
Only in the last 200 years have humans learned how to make things cold. Steven Johnson explains how ice entrepreneur Frederic Tudor made ice delivery one of the biggest export business in the U.S. and describes the place where Clarence Birdseye, the father of the frozen food industry, experienced his eureka moment. He also travels to Dubai to see how mastery of cold has led to penguins in the desert. From IVF to food, politics and Hollywood to human migration, the unsung heroes of cold have led the way.
Where science fiction becomes science fact - that is the place Hank is exploring in today's episode of SciShow. Many inventions we use today were first imagined in stories that described fantastical futures. Hank talks about the origins of four of these: the cell phone, the submarine, the telemanipulator (or robot arm), and the taser.
To fly an early airplane required skill, courage and a sense of adventure. The advent of the movie camera meant that their exploits could be broadcast to every corner of the globe, and recorded for posterity. The pilots of Germany, France and Britain who were able to master combat flying in time to prevent an early death were known as "Air Aces".